Grandstream GSC3516 SIP/Multicast Talk-Back Speaker
Grandstream GSC3516 SIP/Multicast Talk-Back Speaker
SKU:IPG-GSC3516
The Grandstream GSC3516 is a SIP/Multicast talk-back speaker designed for offices, schools, hospitals and apartments. Featuring 3 directional microphones, 2-way voice functionality, and integrated Wi-Fi and Bluetooth, it delivers HD audio communication for flexible intercom solutions.
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- 24 months Manufacturer Warranty
Product Information
| Brand | Grandstream |
|---|---|
| Category | VOIP Phones |
| SKU | IPG-GSC3516 |
| Availability | In Stock |
Overview
- The Grandstream GSC3516 is a professional-grade SIP and Multicast talk-back speaker designed to build scalable voice intercom solutions across offices, schools, hospitals and apartments. With 3 directional microphones featuring beamforming technology and a 4.2 metre voice pickup distance, it delivers reliable two-way communication even in challenging acoustic environments. The advanced full-duplex speakerphone with HD acoustic chamber and echo cancellation ensures clear audio quality for both outbound announcements and incoming conversations.
Built for flexible deployment, the GSC3516 integrates dual-band Wi-Fi and Bluetooth, eliminating wired network limitations where needed whilst maintaining PoE/PoE+ powered operation over standard Ethernet. Support for multiple audio codecs including Opus and G.722 ensures compatibility with diverse VoIP infrastructures and optimised bandwidth usage.
Call control is managed through integrated whitelists, blacklists and greylists, allowing administrators to block unwanted calls and manage who can access the system. The 2-pin multi-purpose input enables connection of external peripherals such as call buttons, expanding functionality to suit specific facility requirements. By pairing the GSC3516 with other Grandstream products—IP phones, PBXs and facility access systems—organisations can build comprehensive, integrated communication and security solutions.
Specifications
| Speaker | HD acoustic chamber with full-duplex speakerphone |
|---|---|
| Microphones | 3 directional microphones with MMAD and beamforming array |
| Voice Pickup Distance | 4.2 metres |
| Audio Codecs | Full-band and wide-band support including Opus and G.722 |
| Acoustic Echo Cancellation | Advanced AEC technology |
| Network Connectivity | One 10/100Mbps Ethernet port with PoE/PoE+ support |
| Wireless Connectivity | Integrated dual-band 802.11 a/b/g/n Wi-Fi and Bluetooth |
| Voice Functionality | 2-way SIP and Multicast |
| Call Management | Built-in whitelists, blacklists and greylists |
| Peripheral Input | 2-pin multi-purpose input for call buttons and accessories |
| Warranty | 24 months |
Key Features
Ideal For
FAQs
Can the GSC3516 work on Wi-Fi only, or does it require an Ethernet connection?
The GSC3516 supports both connectivity options. It includes integrated dual-band Wi-Fi for wireless deployment, whilst also offering a 10/100Mbps Ethernet port with PoE/PoE+ for powered wired installations. This flexibility allows deployment in locations where Ethernet may not be practical.
What audio codecs does the GSC3516 support?
The GSC3516 supports full-band and wide-band audio codecs, including Opus and G.722. This broad codec support ensures compatibility with various VoIP systems and optimises bandwidth usage depending on your network requirements.
How far can the microphones pick up voice?
The 3 directional microphones with beamforming technology have a voice pickup distance of 4.2 metres, making it suitable for medium to large rooms or outdoor entry areas.
Can I integrate the GSC3516 with existing Grandstream systems?
Yes. The GSC3516 is designed to pair with other Grandstream products including IP phones, IP PBXs, Wi-Fi access points and facility access systems, allowing you to build a customised, integrated communication and security solution.
How do I block unwanted calls on the GSC3516?
The GSC3516 includes built-in whitelists, blacklists and greylists, allowing administrators to easily manage which numbers and devices can reach the speaker, preventing unwanted calls and improving security.
What is the warranty period?
The Grandstream GSC3516 includes a 24-month manufacturer's warranty covering defects in materials and workmanship.
What peripheral devices can I connect via the 2-pin input?
The 2-pin multi-purpose input supports call buttons and other accessories. Consult the product documentation or contact Hyetech Australia for a complete list of compatible peripherals.
Is the GSC3516 suitable for outdoor use?
The GSC3516 is designed for indoor environments according to its specifications. For outdoor applications, consult Hyetech Australia to discuss alternative solutions or protective enclosures.
